Anchor apparatus and method for orthodontic appliances
First Claim
1. A method of anchoring orthodontic appliances or the like in the mouth with the use of anchor screws that are installed in the bone in different areas of the mouth, comprising using anchor screws of different constructions in different mouth areas to insure adequate bone contact and retention, each of the anchor screws having a threaded portion and a washer portion at the outer end of the threaded portion and of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion.
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Accused Products
Abstract
An apparatus and method for anchoring orthodontic appliances or the like in the mouth wherein anchor screws of different constructions are installed in the bone in different areas of the mouth to insure adequate bone contact and retention. Each of the anchor screws has a threaded portion and a washer portion at the outer end of the threaded portion which is of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion. In some cases, the threaded portion is provided with threads of different sizes and the washer portion is provided with an exterior thread for cutting through gum tissue to enable the washer portion to engage the underlying adjacent exterior bone surface when the threaded portion is installed in the bone. Each anchor screw is provided with a lateral bore at the outer end thereof for receiving a ligature or the like therethrough to prevent the anchor screw from falling in the mouth.
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Citations
25 Claims
- 1. A method of anchoring orthodontic appliances or the like in the mouth with the use of anchor screws that are installed in the bone in different areas of the mouth, comprising using anchor screws of different constructions in different mouth areas to insure adequate bone contact and retention, each of the anchor screws having a threaded portion and a washer portion at the outer end of the threaded portion and of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion.
- 6. Apparatus for anchoring orthodontic appliances or the like in the mouth, comprising anchor screws of different constructions for installation in the bone in different areas of the mouth to insure adequate bone contact and retention, each of the anchor screws having a threaded portion and a washer portion at the outer end of the threaded portion of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion.
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10. (canceled)
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13. An anchor screw for anchoring orthodontic appliances or the like in the incisal area of the mouth, said anchor screw comprising an elongated threaded portion and a washer portion at the outer end of the threaded portion and of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion.
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14. (canceled)
- 15. An anchor screw for anchoring orthodontic appliances or the like in the palatal area of the mouth, said anchor screw comprising a threaded portion having a first thread on the inner end thereof and a second larger thread at the outer end thereof, and a washer portion adjacent the second thread at the outer end of the threaded portion, the washer portion being of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion.
- 17. An anchor screw for anchoring orthodontic appliances or the like in the mesial area of the mouth, said anchor screw comprising a threaded portion having a first thread on the inner end thereof and a second larger thread at the outer end thereof, and a longitudinally narrow washer portion adjacent the second thread at the outer end of the threaded portion, the narrow washer portion being of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion.
- 19. An anchor screw for anchoring orthodontic appliances or the like in the zygomatic areas of the mouth, the anchor screw comprising a threaded portion and a washer portion at the outer end of the threaded portion and of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion, the washer portion being elongated and being concave in the longitudinal direction.
- 21. An anchor screw for anchoring orthodontic appliances or the like in the mouth, the anchor screw comprising a threaded portion and a washer portion at the outer end of the threaded portion, the washer portion being of greater lateral width than the threaded portion, and a flexible and resilient washer disposed between the threaded portion and the inner end of the washer portion, the flexible and resilient washer being of a lateral width greater than that of the washer portion and serving to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion when the anchor screw is installed at different angles in the bone.
Specification